steam wont let me log on a server, please help!

[hegele]

Ok, I haven't played CS in like two months (i know, i know), so when I re-instal steam with Condition Zero, I notice all the HL2 adds and other source adds and I'm like "cool"... So I go to play a Condition Zero server and when I double click it all that comes up is another CSSource add! I swear I can't play on servers anymore because right when I click on connect to server all I get is a "browse Game: Pre-Order HL2 and get CS:S instantly!"

Please help I have no idea what to do!